- open sieve
- мат.открытое решето
English-Russian scientific dictionary. 2008.
open sieve
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Sieve (category theory) — In category theory, a branch of mathematics, a sieve is a way of choosing arrows with a common codomain. It is a categorical analogue of a collection of open subsets of a fixed open set in topology. In a Grothendieck topology, certain sieves… … Wikipedia
Sieve (mathematics) — In mathematics, sieve has several possible definitions: * In number theory, a sieve is a technique for counting the size of certain sets whose precise number of elements is hard to determine. See sieve theory, general number field sieve, and… … Wikipedia
sieve and shears — noun plural but singular in construction : divination (as for guilt or a marriage partner) by observation of the motion of a sieve suspended from the points of an open pair of shears : coscinomancy called also riddle and shears … Useful english dictionary
Molecular sieve — A molecular sieve inside an antibiotics container (contents removed). See below for size comparison image … Wikipedia
Lehmer sieve — Lehmer sieves are named for Derrick Norman Lehmer and his son Derrick Henry Lehmer. The father was a professor of mathematics at the University of California, Berkeley at the time, and his son was to follow in his footsteps, as a number theorist… … Wikipedia
Berkeley Open Infrastructure for Network Computing — BOINC Der BOINC Client für Windows … Deutsch Wikipedia
Grothendieck topology — In category theory, a branch of mathematics, a Grothendieck topology is a structure on a category C which makes the objects of C act like the open sets of a topological space. A category together with a choice of Grothendieck topology is called a … Wikipedia
angiosperm — /an jee euh sperrm /, n. Bot. a plant having its seeds enclosed in an ovary; a flowering plant. Cf. gymnosperm. [ANGIO + SPERM] * * * ▪ plant Introduction any member of the more than 300,000 species of flowering plants (division Anthophyta) … Universalium
Gradation test — A gradation test, or sieve analysis, is a commonly used procedure in civil engineering that measures the size distribution, or gradation, of an aggregate, such as sand, crushed rock, or clay. A gradation test is performed on a sample of aggregate … Wikipedia
Wikipedia:Manual of Style/Mathematics — This guideline is a part of the English Wikipedia s Manual of Style. Use common sense in applying it; it will have occasional exceptions. Please ensure that any edits to this page reflect consensus. Shortcuts: WP:MSM MO … Wikipedia
Mesh (scale) — Mesh material is often used in determining the particle size distribution of a granular material. For example, a sample from a truckload of peanuts may be placed atop a mesh with 5 mm openings. When the mesh is shaken, small broken pieces… … Wikipedia
